Shoe-heel lift



N. DAQUINO.

SHOE HEEL LIF T. APPLICATION FILED AUG.30,1920.

Patented May 17,1921.

Nwvzza .ZZaqwm.

MANOR- ATTDHNEI.

UNITED STATES NUNZIO DAQUINO, F TURTLE CREEK, PENNSYLVANIA.

SHOE-HEEL LIFT.

T 0 all whom it may concern:

Be it known that I, NUNZIO DA UINO, a subject of the King of Italy, residing at Turtle Creek, in the county of Allegheny and State of Pennsylvania, have invented certain, new and useful Improvements 1n Shoe- 7 Heel Lifts, of which the following is a specification.

The present application relates to shoe heels or lifts and is particularly useful in connection with rubber heels. The purpose of my invention resides in producing a heel or lift of such shape and form before attachment to the shoe that when said lift is permanently attached to the shoe heel the edges will perfectly adhere to the same all around the periphery of the heel, as well as at the forward edge of same.

I am aware there are a number of heel liftsdesigned to overcome the use of cement between the leather upper portion of the heel and the lower or rubber. portion there'- of, some depending on a suction principle and others on simply a pressure action of the attaching means used, but it is believed that there are such divergencies between all of such lifts and the construction and shape of my invention, as will accomplish the much desired result aimed at, and imperfectly attained by many heels heretofore designed for this purpose. As will appear hereinafter my invention provides a means of attaining a perfect pressure and closed joint at the junction of the leather upper portion and the resilient lower portion of the heel, as well as enables the lift to be attached to the heel without particular attention being given to the smoothing or leveling of the leather upper portion of said heel.

This latter feature is an important one, since it saves the time of an expert shoemaker, or in another case enables any person to apply the' rubber heel to their own shoes.

In the drawings .1 have shown one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles of my invention.

Figure 1 is a rear View of the heel of a shoe illustrating a feature found in lifts in common use.

Fig. 2 is a top plan view of my new type of shoe heel lift.

Specification of Letters Patent.

Application filed August 30, 1920.

Patented May 1'7, 1921.

Serial No. 407,059.

Fig. 3 is a shoe showing my heel lift ready to be applied thereto.

F g. 4 1s a section on line 4el of Fig. 2.

F 1g; 5 is a transverse section. on line 5-5 of Fig. 2

Fig. 6 is a front view from the left of Fig. 2.

The numeral 1 indicates my new type of of my lift taken resilient lift, and it is seen that the central area or portion 2, shown clearly in Figs. 2, 1 and 5 1s slightly curved so that when irregularitles are found in the under surface of the leather portion 6 of the heel 7, after the lift 1 is attached by the securing means 8, 8, etc., the slight curvature in area 2, overcomes and adjusts itself readily without further attention, as is readily understood.

' It will be noted that the rims 9, 9 as shown clearly in Figs. 4 and 5 are sharply curved upwardly to form a comparatively sharp or thin edge of material at 10, 10.; and that said rims 9 are joined to the central area 2 by a connecting curve 11, the central curve 13 gradually accumulating into the sharper curve 1 as seen in said Figs. 4: and 5.

The forward rim 15 of the lift is formed of a flat bevel with a distinct line of demarcation at 16 between said rim l5 and the curve 13'of the inner area 2. It is also noted from the section of Fig. 4t and the front View in Fig. 6 that the top forward edge 17 drops somewhat below the top edge 10 from points 18 to 19 and then continues in a transverse direction across the heel at the same fiat elevation of 19-19.

It is also seen that the curved rim 9, continues toward theforward rim 15 on both sides 20, 21 until said rim 9 intersects the beveled portion 15, thus forming a beveled diagonal corner at 22, 22.

The fastening means illustrated in my drawings are nails and washers, the latter inserted in the interior of the material of the liftin the usual fashion, and it is noted that said nails are placed so that they pass through the curve 11, and the line of demarcation 16, for a purpose described below.

The purpose of the particular features of construction shown and described above is as follows :In the case of applying a flat lift such as 23 to a leather heel 2 1, using the nails 25 adjacent to the edge 26 as shown in Fig. 1,'it is at once seen the material of the lift 23 is much compressed at 27 and as a result the edge 28 is thrown downward as shown leaving a large gap 29 between the r 8, 8 is driven home, due to this cup-shaped rim, there is always an upward pressure exerted by the edge 10 against the under face of the leather portion 6 of heel 7 thus forming a tight joint from a practical standpoint, as has been found in actual practice, at 31. It is also found that by having a sharply curved rim at 14 and joined by a curve at 11 to the central curved portion 13 the tendency of the rubber to wrinkle when said surfaces are flattened against the edge 30 of heel 7 is thereby overcome. Further it is seen by having a curve at 14 instead of an ordinary beveled flat edge, the pressure exerted by the nail is concentrated at the edge 10 as is at once seen, thus forming an actual pressure tight joint at 31.

It isfurther found that in applying the lift 1 to the shoe, that a pucker of material seems to accumulate at 22, 22 so that if the edge 10 is continued from 18 to 18 transversely that said lift will not adhere perfectly to the face 30 of heel 7. To overcome this obvious difiiculty in my invention I have formed a beveled rim 15, the top of which is at a lower elevation 19 than the top of edge 10, and as less pressure is desirable across the said rim 15, I have formed said rim beveled flat and forming an angular junction 16' with the central curve.

It is seen that when nails 32, 33, 34 are driven in that by having an angle at 16 there is less upward pressure at the edge 17 than if the rim 15 was formed cup-shaped like rim 10, and thus the tendency of the material to wrinkle or 'pucker'on the transverse edge 17 is allowed for by not having so great an upward rim pressure at 17 It is also seen that a closed joint at the forward edge of rim 15 is very'desirable and not usually provided for in the lifts in common use. i 7

As before suggested the purpose of the central curve 13 is to obviate any particular attention being given to rasping down or smoothingthe under surface 30 of the heel 7 when applying my rubber lift to a shoe, the said curved face 13 of the central area 2 accommodating any such irregularities readily.

I have shown the said lift 1 of a uniform thickness and the bottom face of same following the substantial outline of the upper face, and this is the desirable form for such lift, though not necessarily the only one which may be used.

I claim 1. A lift for shoes having an upwardly curved central area, an upwardly curved cup-shaped rim forming the sides and rear edge of said lift, a transverse beveled rim onthe forward end of the lift the upper edge of which has comparatively short upwardly extending corners, and a central portion formed at a lower elevation than the upper edge of the aforesaid cup'shaped rim, to prevent puckering of the lift material when attached to a flat surface.

2. A lift for shoeshaving an upwardly curved cup-shaped rim forming the sides and rear of said lift, a thin edge formed on the said rim, a transverse beveled rim on the forward end of the lift, a horizontal upper edge on the beveled rim formed at a slightly lower elevation than the upper edge of the cup-shaped rim and having upwardly extending corners thereon, and means for securing the lift to a shoe heel passing through the lines of intersection of the central curved area, and the aforesaid cupshaped and beveled rim.

8. In a lift for shoes, a heel of uniform thickness having a comparatively large central curved area, a-narrow cup-shaped rim adjoining the central area, a sharply curved surface portion connecting said central area and the cup-shaped rim, a transverse beveled rim on the forward end of the lift having a horizontally disposed upper edge with upwardly-extending corners thereon, and means for securing said lift to a shoe heel, passing through the curved connecting surface portion of the lift, and the line of demarcation between the transverse rim and the central area.

' In testimony whereof I affix my signature.

NUNZIO DAQ UINO. 

